Select 来自联合查询的结果，Oracle

Question

我正在尝试对并集的结果进行 select。我是运行 Oracle 11g。我运行以下查询，我得到 ORA-00933: SQL command not properly ended

我看了很多其他帖子，这应该有用，但它不适合我。任何帮助将不胜感激。

SELECT tbl.name
FROM
(
    SELECT name FROM customer
    UNION
    SELECT name FROM vendor
) AS tbl;

Answer 1

移除as.

SELECT tbl.name
FROM
(
    SELECT name FROM customer
    UNION
    SELECT name FROM vendor
) tbl

Answer 2

Oracle 不支持 as table 别名。所以，只需删除它：

SELECT tbl.name
FROM (SELECT name FROM customer
      UNION
      SELECT name FROM vendor
     ) tbl;

Select from the result of a union query, Oracle